G3P800
Tankless under-sink RO with 800 GPD output and a smart faucet display.
At a glance
Pros
- + Tankless design saves cabinet space
- + High 800 GPD output with fast dispensing
- + Low drain ratio reduces wastewater
- + Smart faucet shows filter life and TDS
Cons
- − Higher price than tank RO systems
- − Requires a power outlet under the sink
Our verdict
The Waterdrop G3P800 is a fast tankless RO system that frees up cabinet space and reduces wastewater. Its higher price and reliance on power are the trade-offs.
Full specs
| Filter type | Tankless RO |
|---|---|
| Removes | lead, PFAS, fluoride, nitrates, arsenic, chlorine |
| NSF certified | 58, 401 |
| Flow rate | 0.55 GPM |
| Filter life | 1,100 gal |
| Filter cost / yr | 120 USD |
| Installation | DIY |
| Storage tank | No |
Compare to similar models
Other water filters that match G3P800's strengths.
AquaTru
Classic Countertop RO
Countertop reverse osmosis that needs no plumbing yet removes a huge contaminant range.
$449 $499
Aquasana
OptimH2O Reverse Osmosis
Under-sink RO with Claryum remineralization that targets lead, PFAS, and fluoride.
$379 $429
APEC
Top Tier RO-90
Five-stage under-sink reverse osmosis that strips lead, PFAS, fluoride, and more.
$219 $280
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